| 摘要 |
The present invention relates to a lens (100) for an illumination device, comprising a bottom surface (1) and an emergent surface (2) rising from the bottom surface (1), wherein a recessed region (3) is defined in a center of the bottom surface (1), a surface of the recessed region (3) forms an incident surface (4), and a light source (5) of the illumination device is disposed in the recessed region (3), wherein the emergent surface (2) comprises a first region (21) formed in a center of the emergent surface (2), and at least one second region (22) surrounding the first region (21), wherein the first region (21) is formed by a first refractive surface (211), and the second region (22) is formed by a reflective surface (221) and a second refractive surface (222). In addition, the present invention further relates to an illumination device (200) comprising the lens. |
